package com.fuzongle.tank.common.image;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Binarizer;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.EncodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.Result;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

/**
 * 
 * @Description:生成二维码
 * @author: fuzongle   
 * @date: 2019年3月15日 下午4:49:43
 */
public class ZXingCode
{
    private static final int BLACK = 0xFF000000;
    private static final int WHITE = 0xFFFFFFFF;
    public static void main(String[] args) throws WriterException
    {
//        String content = "http://121.199.8.244:9388/timei/my_share_shop.html?code=23";
//        String filePath = "C:/myFile/1/1.png";
//        String logoPics = "C:/myFile/1/2.png";
//        String lastPics = "C:/myFile/1/3.png";
//        getZCode(content,filePath,logoPics,lastPics);
//        parseQR_CODEImage(new File("C:/myFile/1/3.png"));
    }
    public static String getZCode(String filePath,String basePath,String logoPath,String encoderImgId,String project,String path){
      String content ="http://www.jiuyueketang.com/jiuyue/html/LoginReg/reg.html?invitationCode="+encoderImgId;
    //	String content = basePath + "JLY/admin/index.html?user_id="+encoderImgId;
        if (content!=null){
            logoPath = filePath + logoPath;
        }else{
            logoPath = filePath + project + "/uploadFiles/uploadImgs/logo.png";
        }
        encoderImgId = encoderImgId +".png"; //encoderImgId此处二维码的图片名
        ZXingCode.getZCode(content,filePath + path + "/" + encoderImgId,logoPath,filePath + path + "/"  +encoderImgId);
        return   "/upload/QRCode/" + encoderImgId;
    }

    public static void getZCode(String content,String qrPics,String logoPics,String lastPics){
        File qrPic = new File(qrPics);
        if (!qrPic.exists()) {
            if (!qrPic.getParentFile().exists()) {
                qrPic.getParentFile().mkdirs();
            }
        }
        ZXingCode zp = new ZXingCode();

        try {
            BufferedImage bim = zp.getQR_CODEBufferedImage(content, BarcodeFormat.QR_CODE, 400, 400, zp.getDecodeHintType());
            File logoPic = new File(logoPics);
            File lastPic = new File(lastPics);
            ImageIO.write(bim, "jpeg", lastPic);
            //zp.addLogo_QRCode(qrPic,logoPic, new LogoConfig(),lastPic);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    /**
     * 给二维码图片添加Logo
     *
     * @param qrPic
     * @param logoPic
     */
    public void addLogo_QRCode(File qrPic, File logoPic, LogoConfig logoConfig,File lastPic)
    {
        try
        {
            if (!qrPic.isFile() || !logoPic.isFile())
            {
                System.out.print("file not find !");
                System.exit(0);
            }

            /**
             * 读取二维码图片，并构建绘图对象
             */
            BufferedImage image = ImageIO.read(qrPic);
            Graphics2D g = image.createGraphics();

            /**
             * 读取Logo图片
             */
            BufferedImage logo = ImageIO.read(logoPic);
            /**
             * 设置logo的大小,本人设置为二维码图片的20%,因为过大会盖掉二维码
             */
            int widthLogo = logo.getWidth(null)>image.getWidth()*2/10?(image.getWidth()*2/10):logo.getWidth(null),
                    heightLogo = logo.getHeight(null)>image.getHeight()*2/10?(image.getHeight()*2/10):logo.getHeight(null);

            // 计算图片放置位置
            /**
             * logo放在中心
             */
            int x = (image.getWidth() - widthLogo) / 2;
            int y = (image.getHeight() - heightLogo) / 2;
            /**
             * logo放在右下角
             */
//            int x = (image.getWidth() - widthLogo);
//            int y = (image.getHeight() - heightLogo);
            //开始绘制图片
            g.drawImage(logo, x, y, widthLogo, heightLogo, null);
            g.drawRoundRect(x, y, widthLogo, heightLogo, 15, 15);
            g.setStroke(new BasicStroke(logoConfig.getBorder()));
            g.setColor(logoConfig.getBorderColor());
            g.drawRect(x, y, widthLogo, heightLogo);

            g.dispose();
            logo.flush();
            image.flush();

            ImageIO.write(image, "png", lastPic);
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }

    /**
     * 二维码的解析
     *
     * @param file
     */
    public static void parseQR_CODEImage(File file)
    {
        try
        {
            MultiFormatReader formatReader = new MultiFormatReader();

            // File file = new File(filePath);
            if (!file.exists())
            {
                return;
            }
            BufferedImage image = ImageIO.read(file);
            LuminanceSource source = new BufferedImageLuminanceSource(image);
            Binarizer binarizer = new HybridBinarizer(source);
            BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);
            Map hints = new HashMap();
            hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
            Result result = formatReader.decode(binaryBitmap, hints);
            System.out.println("result = " + result.toString());
            System.out.println("resultFormat = " + result.getBarcodeFormat());
            System.out.println("resultText = " + result.getText());
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }

    /**
     * 将二维码生成为文件
     * @param bm
     * @param imageFormat
     * @param file
     */
    public void decodeQR_CODE2ImageFile(BitMatrix bm, String imageFormat, File file)
    {
        try
        {
            if (null == file || file.getName().trim().isEmpty())
            {
                throw new IllegalArgumentException("文件异常，或扩展名有问题！");
            }

            BufferedImage bi = fileToBufferedImage(bm);
            ImageIO.write(bi, "apng", file);
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }


    /**
     * 构建初始化二维码
     *
     * @param bm
     * @return
     */
    public BufferedImage fileToBufferedImage(BitMatrix bm)
    {
        BufferedImage image = null;
        try
        {
            int w = bm.getWidth(), h = bm.getHeight();
            image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);

            for (int x = 0; x < w; x++)
            {
                for (int y = 0; y < h; y++)
                {
//                    image.setRGB(x, y, bm.get(x, y) ? 0xFF000000 : 0xFFCCDDEE);
                    image.setRGB(x, y, bm.get(x, y) ? BLACK : WHITE);
                }
            }

        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
        return image;
    }

    /**
     * 生成二维码bufferedImage图片
     *
     * @param content
     *            编码内容
     * @param barcodeFormat
     *            编码类型
     * @param width
     *            图片宽度
     * @param height
     *            图片高度
     * @param hints
     *            设置参数
     * @return
     */
    public BufferedImage getQR_CODEBufferedImage(String content, BarcodeFormat barcodeFormat, int width, int height, Map<EncodeHintType, ?> hints)
    {
        MultiFormatWriter multiFormatWriter = null;
        BitMatrix bm = null;
        BufferedImage image = null;
        try
        {
            multiFormatWriter = new MultiFormatWriter();

            // 参数顺序分别为：编码内容，编码类型，生成图片宽度，生成图片高度，设置参数
            bm = multiFormatWriter.encode(content, barcodeFormat, width, height, hints);

            int w = bm.getWidth();
            int h = bm.getHeight();
            image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);

            // 开始利用二维码数据创建Bitmap图片，分别设为白（0xFFFFFFFF）黑（0xFF000000）两色
            for (int x = 0; x < w; x++)
            {
                for (int y = 0; y < h; y++)
                {
                    image.setRGB(x, y, bm.get(x, y) ? 0xFF000000 : 0xFFFFFFFF);
                }
            }
        }
        catch (WriterException e)
        {
            e.printStackTrace();
        }
        return image;
    }

    /**
     * 设置二维码的格式参数
     *
     * @return
     */
    public Map<EncodeHintType, Object> getDecodeHintType()
    {
        // 用于设置QR二维码参数
        Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();
        // 设置QR二维码的纠错级别（H为最高级别）具体级别信息
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
        // 设置编码方式
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        hints.put(EncodeHintType.MARGIN, 0);
        hints.put(EncodeHintType.MAX_SIZE, 350);
        hints.put(EncodeHintType.MIN_SIZE, 100);

        return hints;
    }
}

class LogoConfig
{
    // logo默认边框颜色
    public static final Color DEFAULT_BORDERCOLOR = Color.WHITE;
    // logo默认边框宽度
    public static final int DEFAULT_BORDER = 2;
    // logo大小默认为照片的1/5
    public static final int DEFAULT_LOGOPART = 5;

    private final int border = DEFAULT_BORDER;
    private final Color borderColor;
    private final int logoPart;

    /**
     * Creates a default config with on color {@link #} and off color
     * {@link #}, generating normal black-on-white barcodes.
     */
    public LogoConfig()
    {
        this(DEFAULT_BORDERCOLOR, DEFAULT_LOGOPART);
    }

    public LogoConfig(Color borderColor, int logoPart)
    {
        this.borderColor = borderColor;
        this.logoPart = logoPart;
    }

    public Color getBorderColor()
    {
        return borderColor;
    }

    public int getBorder()
    {
        return border;
    }

    public int getLogoPart()
    {
        return logoPart;
    }
}
